Emerson Hytork XL Series - ATEX Temperature Range Classification

March 2024
Safety Guide
DOC.SG.HX.1 Rev. 2
4
Section 3: Hytork XL-Series Actuators
These safety instructions are limited to Hytork XL-Series
actuators which are operating using air or inert gas. If the
application requires use of a ammable or hazardous gas, you
must contact your Emerson sales oce for assistance.
3.1 Installation
!
WARNING
To avoid personal injury and property damage caused by bursting
of parts and to avoid parts damage, malfunction of control valve
or loss of control of the process caused by excessive pressure,
do not exceed the maximum pressures or temperatures for this
actuator, as given in the applicable product literature or on the
nameplate. Use pressure-limiting or pressure-relieving devices
to prevent the actuator pressure from exceeding specied limits.
If you cannot determine the limits for this product, contact your
Emerson sales oce before proceeding.
• To avoid personal injury, always wear protective
gloves, clothing and eye wear when performing any
installation operation.
• If hoisting the actuator, use a nylon sling to protect the
surfaces. Carefully position the sling to prevent damage
to the actuator tubing and any accessories. Also, take care
to prevent people from being injured in case the hoist or
rigging slips. Be sure to use adequately sized hoists and
chains or slings to handle the assembly. If an
actuator/valve assembly should be lifted, it is strongly
recommended to connect the nylon lifting slings in such
way that the actuator and valve is supported.
• Check with your process or safety engineer for any
additional measures that must be taken to protect against
process media.
• If installing into an existing application, also refer to the
WARNING in the Maintenance section.
• Do not connect a pressure vessel to the actuator with
unrestricted media.
• Do not exceed the MAXIMUM stated operating pressures.
• Applying pressure directly to the actuator can turn the
actuator's shaft/valve stem.
• Applying a control signal to the actuator's solenoid can
turn the actuator/valve assembly.
Section 3: Hytork XL-Series Actuators
Hytork XL-Series Actuators